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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Product Discovery Learning Card |  Product Discovery Test Card |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | High | Low | Low | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 25-40 min | 20-35 min | 45-60 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 1-5 | 1-5 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Learning Card with evidence and next action | Test Card with a pre-set threshold | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | ExperimentsValidationDiscoveryLearning | ExperimentsValidationDiscoveryHypothesis | AssumptionsRiskExperimentsValidation |